Dataset Information

Proteomic profiling reveals the molecular changes of insomnia patients

ABSTRACT: Insomnia is an economic burden and public health problem. This study aimed to explore potential biological pathways and protein networks for insomnia characterized by wakefulness after sleep. Proteomics analysis was performed in the insomnia group with wakefulness and the control group. The differentially expressed proteins (DEPs) were enriched, then hub proteins were identified by protein-protein interaction (PPI) network and verified by parallel reaction monitoring (PRM). Compared with the control group, the sleep time and efficiency of insomnia patients were decreased, awakening time and numbers after sleep onset were significantly increased (P < 0.001).

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Blood Cell, Blood

DISEASE(S): Insomnia

SUBMITTER: Guanying Wang

LAB HEAD: Tao Liu

PROVIDER: PXD026610 | Pride | 2022-10-14

REPOSITORIES: Pride

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Publications

B serum proteome profiles revealed dysregulated proteins and mechanisms associated with insomnia patients: A preliminary study.

Liu Tao T Wang Guanying G Zhang Xingping X Liu Xin X Liang Zhengting Z Ren Xiaojuan X Yan Deqi D Zhang Wenhui W

Frontiers in integrative neuroscience 20220726

<h4>Background</h4>Insomnia is a clinical problem of significant public health importance; however, the underlying pathogenesis of this disorder is not comprehensively understood.<h4>Methods</h4>To identify potential treatment targets and unfold one of the gaps that were involved in insomnia pathological mechanisms, we employed a tandem mass tag-based (TMT) quantitative proteomics technology to detect differentially expressed proteins (DEPs) in serum from patients with insomnia and controls. DEP ...[more]

PMID: 35958162

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Project description:These studies address temporal changes in gene expression during spontaneous sleep and extended wakefulness in the mouse cerebral cortex, a neuronal target for processes that control sleep; and the hypothalamus, an important site of sleep regulatory processes. We determined these changes by comparing expression in sleeping animals sacrificed at different times during the lights on period, to that in animals sleep deprived and sacrificed at the same diurnal time. Experiment Overall Design: Experiments were performed on male mice (C57/BL6), 10 weeks of age Â±1 week. Animals were housed in a light/dark cycle of 12 hrs, in a pathogen free, temperature- and humidity-controlled room (22Â°C and 45-55%, respectively) with water available ad libitum. Food was accessible for 12 hrs only during the active period. Animals were subjected to 14 days of acclimatization during which a nighttime feeding pattern was established. This was done to avoid differential food intake between mice that were subsequently sleep deprived during the lights on period and those allowed to sleep. Mice were sacrificed following 3, 6, 9 and 12 hrs of total sleep deprivation (n=5 at each time point). Deprivation was initiated at lights-on, and performed through gentle handling. Sleeping animals, which were left undisturbed, were sacrificed at the same diurnal time points as sleep deprived mice (n=5 at each time point). An additional control group of mice were sacrificed at time zero, i.e., at the time of lights-on (n=5). All mice were behaviorally monitored using the AccuScan infrared monitoring system that detects movement when the mouse crosses electronic beams (Columbus Instruments). Mice were sacrificed by cervical dislocation. Brain sectioning was performed according to the mouse brain atlas of Franklin and Paxinos . The primary and secondary motor areas (M1 and M2) of the cerebral cortex and broadly defined regions and zones of the hypothalamus were sampled. RNA was isolated with Trizol (Invitrogen) and further purified using RNeasy columns (Qiagen) as per the manufacturer's instructions.

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